Gold: Most Sought-after Precious Metal

Of all the type of precious metals, we consider gold is probably the most greatly desirable. Since the start of recorded history, gold could have been used in a variety of works of art, coinage, and, obviously, jewelry. Present as grains in rocks and in alluvial deposits, gold is shiny, smooth, as well as dense. It’s recognized to be the metal most flexible also malleable pure.

What makes pure gold particularly interesting is its intense yellow color & shine. These features are maintained as gold is chemically unaffected through air or moisture. Here i will discuss a few of properties of gold:

General Information on Gold:

• Chemical Symbol: Au

• Atomic Number: 79

• Group (as an element): Transition Metal

• Group/ Period/ Block (in Periodic Table): 11/ 6/ d

• Atomic Weight: 196.966569(4) g.mol-1

• Electron Configuration: [Xe] 4f14 5d10 6s1

Physical:

• Density (near room temperature): 19.30 g.cm-3

• Liquid Density (at melting point): 17.31 g.cm-3

• Melting Point: 1064.18°C, 1947.52°F, 1337.33°K

• Boiling Point: 2856°C, 5173°F, 3129°K

• Heat of Fusion: 12.55 kJ.mol-1

• Heat of Vaporization: 324 kJ.mol-1

Atomic:

• Oxidation States: -1, 1, 2, 3, 4, 5

• Electronegativity: 2.54 (Pauling scale)

• Atomic Radius: 144 picometre

• Covalent Radius: 136±6 picometre

• Van der Waals Radius: 166 picometre

• Ionization Energies: 890.1 kJ.mol-1 (first), 1980 kJ.mol-1 (second)

The term “gold” was derived from “geolu”, an Old English Anglo-Saxon word which suggests “yellow”. Its symbol “Au”, on other hand, originated with “aurum”, the Latin word for “gold”. The accurate period at that time gold was initial discovered might be a subject matter of debate. When a few records point to the year 1848 at that time gold was invented in California, the past tells us that this precious metal has been extensively used by the the traditional Egyptians, Romans, Greeks, Chinese, also South Americans.

All through olden times, gold has functioned as a gauge of value and a logo of prosperity. It truly is one of a coinage metals (along with silver & copper). It is used, commonly and officially, as a way of payment or a medium of exchange. Gram & troy weight are the units of measurement used for gold. To denote the total amount of gold present in, say, a piece of jewellery, the word “carat” is used. A jewelery, for instance, that may be 24 carats signifies that it will be made of pure gold.

When the price of gold is determined by the derivatives trading as well as markets for gold, its every day cost reference is provided in proceedings of the “London Gold Fix”. In this process, the cost of precious metal is determined every business day on London market. The fixing is done two times – once in morning and the other in afternoon. It was really announced almost 49 years later the procedure itself was announced, as a means of giving a price when American markets are open.

This gold-price fixing process is done by five members of the London Gold Market Fixing Ltd., namely The Bank of Nova Scotia, Barclays Capital, Deutsche Bank AG London, HSBC, and Societe Generale Corporate and Investment Banking.

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